Custom software (also known as bespoke software) is a type of software that is developed either for a specific organization or function that differs from or is opposite of other already available software (also called off-the-shelf or COTS software). It is generally not targeted to the mass market, but usually created for companies, business entities, and organizations. Custom software also refers to when companies or governments pay for customized software for budget or project managing.

Examples of Custom software include products for commercial and governments such as:

• Websites

• Inventory Management

• Customer Management

• Employee Management etc.

This list is just an example as custom software can be anything it's main purpose is to solve problem that the client is encountering that existing software cannot fix.